Spray-controlling device for road-scavengering machines



P. LORANGE Dec. 17, 1929 SPRAY CONTROLLING DEVICE FOR ROAD SCAVENGERINGMACHINES 2 Sheets-Sheet Filed July 9, 1928 Dec. 17, 1929. P. LORANGE1,740,361

SPRAY CONTROLLING DEVICE FOR ROAD SCAVENGERING MACHINES Filed July 9,1928. 2 Sheets-Sheet 2 fly. 3.

Patented Dec. 17, 1929 Uhlt'lED STATES PATENT OFFICE This inventionrelates to a street scavengering machine. and consists in thecombination with a spray-producer, and with meanswhereby the extent ofthe spray can be regulated transversely as well as longitudinally of themachine, and of a universally movable hand lever whereby said regulatingmeans are con trolled for effecting a regulation of the spray in bothdirections.

Since in this arrangement there is only one operating lever, theregulation of the spray to meet varying road conditions will be greatlyfacilitated, particularly if the required movements of the lever are inaccordance with natural promptings, for instance if the regulation ofthe spray is co-directional with the 1T10"-J(1I1G11t of the lever grip.

Fig. l of the accompanying drawings represents a sectional side view ofone form 0f the device,

ig". 2, a front view of the same, Fig. 3, a sectional side view of amodified form of the device, and

Fig. i, a front view of the latter. In both constructions thespray-producer cons. ts of a cylinder awhichreceiveswater or otherliquid from a conduit 7?. and which has a series of perforations 6through which the liquid is discharged in a spray the extent of which,transversely and longitudinally of the machine, depends upon thearrangement of the perforations in the cylinder wall. This extent can beregulated by means of valve elements whereby more or less of theperforations may be closed.

In the arrangement of Figs. 1 and 2 there are two valve elements one ofwhich is composed of a piston valve 0 arranged inside the cylinder andadapted for slidable adjustment therein. The other valve elementconsists of asleeve g which is adapted to be rotated about the cylinderand which has a cut-away portion it through which all the perforations bcan be exposed when required, while the number of open perforations canbe reduced at will by a rotary adjustment of the sleeve. A toothed rim2' on the head of the sleeve 9 meshes with a toothed sector 70 which issecured to a shaft 0 carried, parallel with the cylinder at, in abracket m on the conduit 71.

STUTTGART, GERMANY RGAD-SCAVE'NGERING MACHINES 291,282, and in GermanyJune 15, 1927'.

A fork j) at the outer end of the shaft 0 holds, one a pivot pin a handlever r whereby the shaft 0 and sector 70 can be rocked for rotating thevalve element g. The lever, which is free to rock independently aboutthe pivot g in the longitudinal plane of the shaft 0, carries, near thefulcrum of the lever, a pivot pin .5: which is normally in alignmentwith the shaft 0. Loosely arranged on the pivot pin 5' is an arm 25which is thus constrained to follow the rocking movements of the lever rin the direction AB (Fig. 1) while it is unaffected by the hand-leverwhen the latter is rocked in the direction CD (Fig. 2) for adjusting thevalve g. The valve element 0 is controlled by a rod 7 which passesthrough a gland (Z and which is engaged by a fork a at the free end ofthe arm 6 so as to cause the valve to be adjusted when the two leversrock about the pivot q.

T he left side of Fig. 1 is turned towards the front end of the machine,and the lever 1' will therefore have to be turned rearwards forrestricting the spray in the longitudinal direction, this being anatural movement. So is also the movement indicated. in Fig. .2 forrestricting the extent of the spray from the side of the machine, thelever being for this purpose turned from its more or less verticalposition towards the centre of the machine, i. e., in the direction inwhich the spray is to be r stricted.

In the arrangement shown in Figs. 3 and 4 the regulation of the spray iseffected by means of a single valve element 0 which is adapted forrotary as well as slidable movement. The valve has an edge 1) whereby,on being rotated, it restricts the spray in a transverse direction, anedge w whereby, on being moved axially, it restricts the spray in thelongitudinal direction. A red P which controls the valve, is fitted atits outer end with a crank 00 which is engaged by a fork a situated atone end of a double-armed hand-lever r which, like the lever r of theprevious construction, is mounted on a pivot pin Q in a fork p at theend of a rotatable shaft 0.

When the hand lever is rocked in the directions CD (Fig. 4) it turns thevalve 0 through the medium of the crank a2. VJ hen it is rocked in thedirections AB (Fig. 3) it acts on the crank for displacing the valve inthe longitudinal direction.

I claim:

1. In a street scavengering machine, the combination with a sprayproducer, and with means in said spray-producer for regulating theextent of the spray transversely as well as longitudinally of themachine, of a handlever capable of universal movementabout a fulcrum,and connection between said lever and the spray-regulating means forcontrolling the latter.

2. A structure as claimed in claim 1 wherein the arrangement is suchthat the regulation of'the spray is codirectional with the movement ofthe lever grip.

'3. In a street-scavengering machine, a spray-producer comprising aperforated cylinder, two valve elements cooperating with" said cylinderfor closing the perforations, one of said valve elements being rotatableabout and the other slidablerelative to the cylinder, a toothed sectorcontrolling the l rotatable valve element, a shaft arranged parallelwith thecylinder and carrying said sector, a hand-lever pivoted to saidshaft so as to participate in the rotary movements of the.

latter and allow ofbeing rocked independently in the longitudinalplaneof the shaft, a.

pivot pin carried by the hand-lever near its fulcrum and held normallyin alignment with the shaft, a forked arm mounted loosely on said pivotpin, and a rod connected to the slidable valve elementand engaged by thefork of said arm so as'tocause said latter valve to be adjusted when thehand-lever is rocked.

PROSPER LORANGE;

